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SLUSD49 – SEPTEMBER 2017 UCC256303 LLC Resonant Controller
Enabling Ultra-Low Standby Power
1 Features 3 Description The UCC256303 is a fully featured LLC controller
with integrated high-voltage gate driver. It has been
designed to pair with a PFC stage to provide a
complete power system using a minimum of external
components. The resulting power system is designed
to meet the most stringent requirements for standby
power without the need for a separate standby power
converter, and with PFC stage running all the time.
UCC256303 includes a range of features designed to
make LLC converter operation well controlled and
robust. This device aims to unburden the LLC
designer and allow mainstream applications to benefit
from efficiency advantages of the LLC topology. 1 Hybrid Hysteretic Control (HHC)
– Best-in-Class Transient Response
– Easy Compensation Design …